Error in AN5566

[nicolas]

In the AN5566 RF certification process for NUCLEO-WL55JC, chapter 1.3 talk about ETSI 300-200: Short Range Devices (SRD) operating in the frequency range 25 MHz to 1000 MHz.

But there is no ETSI 300-200, the correct is ETSI EN 300 220.

[Remi QUINTIN]

I confirm that this is a typo error, the correct is ETSI 300-220 (not ETSI 300-200).

AN5566 will be updated for sure. But as for now, I do not have a plan on when the new version is available.

[nicolas · Accepted solution]

And in page 11 it say that 869.525 MHz maximum power is of 22 dBm EIRP.

But on page 17 it say that 869.525 MHz maximum power is of 29.15 dBm EIRP.

ETSI EN 300 220 for this channel limit power at 500 mW ERP => 27 dBm ERP => 29.15 dBm EIRP.

[nicolas]

22 dBm is the maximum power that STM32WL can deliver but it will give 22 dBm ERP with a dipole antenna => 24.15 dBm EIRP. But with a directional antenna, STM32WL should be able to reach the 29.15 dBm EIRP.